How do I fix the "Port Forwarding Failed" error for multiplayer?

The ''Port Forwarding Failed'' error in Valheim multiplayer occurs when the game cannot establish a connection between players due to network configuration issues. This error is common when hosting a server, as Valheim requires specific ports to be open for communication. To fix this, you need to configure your router and firewall settings to allow traffic through the necessary ports.\n\nFirst, identify the ports Valheim uses for multiplayer. The default ports are 2456-2458 for both TCP and UDP. These ports must be open on your router and firewall to allow incoming and outgoing connections. If you''re unsure how to access your router settings, consult your router''s manual or the manufacturer''s website for instructions.\n\nNext, log into your router''s admin panel. This is typically done by entering the router''s IP address (e.g., 192.168.1.1) into your web browser. Once logged in, navigate to the port forwarding section. This is often found under ''Advanced Settings'' or ''Network Settings.'' Create a new port forwarding rule for Valheim, specifying the ports 2456-2458 for both TCP and UDP protocols. Save the changes and restart your router to apply the new settings.\n\nIf you''re still encountering the error, ensure that your firewall is not blocking Valheim. On Windows, go to ''Windows Defender Firewall'' and create an inbound rule to allow Valheim.exe through the specified ports. On other operating systems, consult the firewall settings to ensure Valheim has the necessary permissions.\n\nAnother common issue is using a dynamic IP address, which can change over time and disrupt port forwarding. To avoid this, set a static IP address for your device. This can be done in your router''s settings or through your device''s network configuration. Assigning a static IP ensures that the port forwarding rules always apply to the correct device.\n\nFor players using a VPN, the ''Port Forwarding Failed'' error may occur if the VPN is blocking the necessary ports. Disable the VPN temporarily to see if this resolves the issue. If you must use a VPN, ensure it supports port forwarding and configure it accordingly.\n\nIf all else fails, consider using a dedicated server instead of hosting directly from your game client. Dedicated servers are more reliable and can be set up on a separate machine or rented from a hosting provider. This eliminates the need for port forwarding on your personal network and provides a smoother multiplayer experience.\n\nFinally, always ensure your game and network drivers are up to date. Outdated software can cause compatibility issues and prevent proper port forwarding. Check for updates regularly to avoid potential problems.\n\nBy following these steps, you should be able to resolve the ''Port Forwarding Failed'' error and enjoy seamless multiplayer gameplay in Valheim. Remember to test your connection after each step to confirm the issue is resolved.